US PATENT SUBCLASS 368 / 219
.~.~ Field-effect transistor

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368 /   HD   HOROLOGY: TIME MEASURING SYSTEMS OR DEVICES

217  DF  PULSE TRANSFORMING MEANS {1}
218  DF  .~ With transistor {1}
219.~.~ Field-effect transistor

DEFINITION

Classification: 368/219

Field-effect transistor:

(under subclass 218) Subject matter wherein the transistor is a field effect transisitor.